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Finding the Fourth Proportional to 7,301.81, 10,947.31 and 2,915.93

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Solution

The fourth proportional to 7,301.81, 10,947.31 and 2,915.93 is: 4,371.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,301.81 : 10,947.31 = 2,915.93 : x
  2. Step 2: Convert to fraction form
    7,301.81/10,947.31 = 2,915.93/x
  3. Step 3: Cross multiply
    7,301.81x = 10,947.31 × 2,915.93
  4. Step 4: Simplify right side
    7,301.81x = 31,921,589.65
  5. Step 5: Solve for x
    x = 31,921,589.65/7,301.81
  6. Step 6: Final answer
    x = 4,371.74

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